慢性活动性肝炎时，肝细胞浆出现毛玻璃样改变的原因是A．滑面内质网内有大量HBsAg

如果上升12米记作+12米，那么-10米表示______．

Is that the reason ________he explained to all at the meeting for his carelessness in his work?  Actually we think he is a man who is hard ________ himself especially in work.

A．that; on

B．what; with

C．why; at

D．which; to

如何除去衣物上的口香糖渍？

在粘膜表面粘附时可产生分解SIgA的蛋白酶

A．葡萄球菌
B．链球菌
C．肺炎链球菌
D．脑膜炎球菌
E．淋球菌

男性，30岁。2年来反复尿频，尿急，尿痛，自服抗生素治疗后症状无明显改善。近1个月来，症状加重，尿频次数明显增加，约30次／日，伴有终末肉眼血尿。

诊断首先考虑（）。

A.慢性膀胱 * * 炎

B.慢性肾盂肾炎

C.慢性前列腺炎

D.膀胱结石

E.肾结核